CN113327553A

CN113327553A - Image display method, display drive integrated circuit chip and terminal

Info

Publication number: CN113327553A
Application number: CN202010129504.9A
Authority: CN
Inventors: 崔志佳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-08-31
Anticipated expiration: 2040-02-28
Also published as: CN113327553B

Abstract

The embodiment of the application discloses an image display method, a display driving integrated circuit chip and a terminal. The method is used for a terminal provided with an AMOLED display screen, and comprises the following steps: setting a first parameter group for the EM signal, wherein each parameter in the first parameter group is used for indicating the variation of the duty ratio corresponding to each EM pulse contained in one frame of the EM signal; wherein the variation of the duty cycle indicated by each parameter in the first parameter group decreases with time; generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group; and displaying the received image according to the target EM signal. Because the variable quantity of the duty ratio in the target EM signal is decreased progressively along with time, the change of the brightness/the chromaticity of the display screen in the frequency conversion process is kept stable, and the display effect of the image in the display screen is improved.

Description

Image display method, display drive integrated circuit chip and terminal

Technical Field

The embodiment of the present application relates to the field of Display technologies, and in particular, to an image Display method, a Display Driver Integrated Circuit (DDIC) chip, and a terminal.

Background

With the continuous development of display screen technology, more and more high-refresh-rate display screens are produced, and the fluency of pictures can be improved by setting the display screens to be in a high-refresh-rate mode during the running of high-frame-rate application programs or the sliding operation process.

For an Active-Matrix Organic Light-Emitting Diode (AMOLED) display screen, limited by a driving structure of an AP-DDIC-Panel (Panel) and a self-Light-Emitting characteristic of the AMOLED display screen, in the related art, a refresh rate of the AMOLED display screen needs to be adjusted manually or semi-automatically, wherein when a Gate FRequency (Gate-FRequency, Gate-FR) is at a flat FRequency or an up FRequency, the AMOLED display screen adopts an up FRequency strategy, and uses an optical parameter corresponding to the Gate-FR of a previous frame.

However, the above method of using the optical parameters of the previous frame can delay the switching of the optical parameters of the AMOLED display screen by one frame during the frequency conversion, which results in the problem of abrupt brightness change of the display screen.

Disclosure of Invention

The embodiment of the application provides an image display method, a DDIC chip and a terminal. The technical scheme is as follows:

in one aspect, an embodiment of the present application provides an image display method, where the method is used for a terminal provided with an AMOLED display screen, and the method includes:

setting a first parameter group for an EM signal, wherein each parameter in the first parameter group is used for indicating the variation of a duty ratio corresponding to each EM pulse contained in one frame of the EM signal; wherein the amount of change in duty cycle indicated by each parameter in the first set of parameters decreases with time;

generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained after the duty ratio corresponding to each EM pulse in the EM signal is adjusted according to the first parameter group;

and displaying the received image according to the target EM signal.

On the other hand, an embodiment of the present application provides a DDIC chip, where the DDIC chip is applied to an AMOLED display screen, and the DDIC chip is configured to:

and displaying the received image according to the target EM signal.

On the other hand, an embodiment of the present application provides a display screen module, where the display screen module includes an AMOLED display screen and a DDIC chip, the DDIC chip is used to drive the AMOLED display screen, and the DDIC chip includes the DDIC chip in the above aspect.

In another aspect, an embodiment of the present application provides a terminal, where the terminal includes at least one display screen module according to the above aspect.

The technical scheme provided by the embodiment of the application can at least comprise the following beneficial effects:

setting a first parameter group for the EM signal, wherein each parameter in the first parameter group is used for indicating the variation of the duty ratio corresponding to each EM pulse contained in one frame of the EM signal; wherein the variation of the duty cycle indicated by each parameter in the first parameter group decreases with time; generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group; and displaying the received image according to the target EM signal. In the application, the variable quantity of the duty ratio in the target EM signal is decreased progressively along with time, so that the brightness/chromaticity change caused by delay caused by the change of optical parameters during frequency conversion can be compensated, the stability of the change of the brightness/chromaticity during the frequency conversion process is improved, and the display effect of images in a display screen is improved.

Drawings

FIG. 1 is a timing diagram of a Gate signal and an EM signal for different Gate-FRs according to an exemplary embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a variation of an optical parameter during an up-conversion process according to an exemplary embodiment of the present application;

FIG. 3 is a flow chart of an image display method provided by an exemplary embodiment of the present application;

FIG. 4 is a flow chart of another image display method provided by an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram of the variation of an optical parameter at an up-conversion in accordance with an exemplary embodiment of the present application;

fig. 6 is a block diagram illustrating a structure of a terminal according to an exemplary embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

For convenience of understanding, terms referred to in the embodiments of the present application will be described below.

Tear Effect (TE) signal: a signal generated by a DDIC chip is used for preventing tearing problem when a picture is refreshed in the process of image display. When the next frame image is ready to be refreshed, the DDIC chip generates a TE signal, and accordingly, the AP sends the next frame image data to the DDIC chip after monitoring the rising edge of the TE signal.

Gate signal: a panel row switch signal is used for controlling a Source (Source) voltage to enter a channel of a current row pixel circuit, so that data refreshing of the current row pixel is realized. Accordingly, the Gate-Timing (Gate-Timing) is used to indicate the Timing of the Gate signal, mainly the Gate Start signal (GSTV), where a GSTV is included in a frame.

EM signal: a panel row switch signal is used for controlling whether the current row of pixels emits light or not. Accordingly, the Timing of the emission signal (EM-Timing) is used to indicate the Timing of the EM signal, mainly the emission Start signal (ESTV), where a plurality of ESTVs are included in one frame.

Number of EM pulses (EM-Pulse-No): in order to realize Pulse Width Modulation (PWM) for adjusting the brightness of the display screen at low brightness, the EM-FRequency (EM-FRequency, EM-FR) is usually an integral multiple of the Gate FRequency (Gate-FRequency, Gate-FR), i.e. multiple EM switching is performed within a Gate frame, and correspondingly, the EM-Pulse-No indicates the number of EM frames within a Gate frame. For example, when the Gate-FR is 60Hz, the EM-FR is 240Hz, and the EM-Pulse-No is 4. It should be noted that, due to the self-luminous characteristic of the AMOLED display screen, in the same frame, the ESTV needs to be strictly matched with the GSTV (the turn-off Timing of the first EM signal needs to be matched with the Gate-Timing), and the remaining EM signals are evenly distributed by the DDIC chip.

Referring to fig. 1, a timing relationship diagram of a Gate signal and an EM signal under different Gate-FRs provided by an exemplary embodiment of the present application is schematically shown, and the timing relationship between the Gate signal and the EM signal under different Gate-FRs may be as shown in fig. 1. Wherein, EM-FR and duty ratio are kept stable, thereby avoiding brightness abrupt change caused by the change of Gate-FR. In FIG. 1, when the Gate-FR is 60Hz/90Hz/120Hz, both the EM-FR and the duty cycle are kept constant (360 Hz). Meanwhile, in order to reduce the influence of the Gate-FR variation on the Gamma and the removal of the non-uniformity (Demura) parameter to the maximum extent, it is necessary to keep the Gate scanning speed unchanged, that is, the time for scanning one row by the Gate unchanged, the time for completing one frame refresh unchanged, and only extend the Vertical spacing (Vporch). In FIG. 1, when the Gate-FR is 60Hz/90Hz/120Hz, each frame scan is completed within 8.3 ms.

Vporch: including the Vertical synchronization Signal (Vsync), the column forward interval (VFP), and the column backward interval (VBP). The VFP is mainly extended when the vertical interval is extended.

For the AMOLED display screen adopting the AP-DDIC-Panel framework, after image data are generated by rendering at the AP side, the image data are sent to the DDIC chip, and the DDIC chip controls the Panel to display images according to the image data. Under a high-refresh-rate display scene, the AP side generates image data at high frequency, and correspondingly, the Panel side carries out high-frequency image refreshing according to the image data, so that the fluency of the picture is improved.

In the practical application process, besides the realization of high refresh rate in the high frame rate game, the high frame rate is mainly applied to a small amount of fast sliding scenes such as desktop sliding and photo album browsing, and the purpose of the method is to improve the fluency of the picture when the user executes fast sliding operation. In the related art, the refresh Rate of the AMOLED display screen is usually adjusted by adopting a Manual Frame Rate (MFR) manner or a semi-automatic manner to adjust the refresh Rate of the AMOLED display screen.

For example, the highest Gate-FR in fig. 1 is 120Hz, and the EM-FR of the AMOLED display screen is 360Hz (other frequencies such as 240Hz/480Hz can be selected). In order to reduce the influence of the Gate frequency conversion on the setting of the optical parameters to the maximum extent, the AMOLED display screen needs to keep the Gate scanning speed unchanged, and only prolong the VFP/VACT (Vertical Active, the number of effective rows in the column direction), namely, a Scan & Hold frequency conversion scheme is adopted. Alternatively, the optical parameters mentioned in the present application may include the above-mentioned Gamma parameter or Demura parameter, etc.

The DDIC may default to operate according to a step-down strategy, and process according to an up-conversion strategy when the DDIC is interrupted (if the last TE receives image data, process according to the up-conversion strategy), specifically, as shown in table 1 below:

TABLE 1

As shown in table 1 above, when the Gate-FR keeps flat frequency or frequency increasing, the frequency increasing strategy is adopted, and at this time, the optical parameters of the next frame follow the optical parameters corresponding to the Gate-FR of the previous frame, so as to generate a switching delay of the optical parameters of one frame in the next frame.

Please refer to fig. 2, which shows a schematic diagram of a variation of an optical parameter during frequency up-conversion according to an exemplary embodiment of the present application. As shown in fig. 2, a first frame 201 and a second frame 202 are included, when the AMOLED needs to change the Gate-FR from 60Hz (hertz) to 120Hz, the corresponding optical parameters in the second frame are kept the same as the optical parameters in the first frame, that is, when the Gate-FR is 120Hz, the 60Hz optical parameters are still used, so that the switching delay of the optical parameters in the second frame is caused, which may cause the change of the brightness and chromaticity of the AMOLED display screen, and reduce the display effect of the image. In addition, for any pixel point in the AMOLED display screen, the larger the change of the Gate-FR is, the larger the change of the brightness is. For example, taking the pixel circuit of the AMOLED display screen as SDC 7T1C pixel circuit as an example, for a certain row of pixels, the reset and charge/compensation only takes 1 row time, but the light-emitting phase takes nearly one frame. Compared with the case that the Gate-FR is 60Hz and 90Hz, because the duration of one frame corresponding to 60Hz is longer, and under the condition that the charging duration of the pixel circuit is the same, the longer the duration of one frame is, the more serious the leakage of the pixel circuit is, and the larger the brightness is increased, the brightness of the AMOLED display screen is higher when the Gate-FR is 60Hz than when the Gate-FR is 90 Hz. When the variation range of the Gate-FR is larger, the brightness of the AMOLED display screen is more sudden and serious.

In order to solve the problems caused by the related technologies, embodiments of the present application provide an image display method, in this scheme, on the basis of adopting the frequency conversion strategy, the AMOLED may compensate for changes in luminance and chromaticity of the AMOLED display screen, so as to keep smoothness and stability of the luminance and chromaticity of the AMOLED display screen during the frequency conversion process, and improve the display effect of an image.

Referring to fig. 3, a flowchart of an image display method according to an exemplary embodiment of the present application is shown. The method is applied to a terminal provided with an AMOLED display screen, and comprises the following steps:

step 301, a first parameter group is set for the EM signal, and each parameter in the first parameter group is used for indicating a variation of a duty ratio corresponding to each EM pulse included in one frame of the EM signal.

Wherein the amount of change in duty cycle indicated by each parameter in the first parameter group decreases with time.

Step 302, generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group.

Step 303, displaying the received image according to the target EM signal.

In summary, by setting a first parameter group for the EM signal, each parameter in the first parameter group is used to indicate a variation of a duty ratio corresponding to each EM pulse included in one frame of the EM signal; wherein the variation of the duty cycle indicated by each parameter in the first parameter group decreases with time; generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group; and displaying the received image according to the target EM signal. In the application, the variation of the duty ratio in the target EM signal is decreased progressively along with time, so that each frame of EM signal is still displayed according to the rule of the first parameter group when the Gate-FR of the display screen is changed, the brightness/chromaticity change caused by the delay caused by the change of the optical parameters during frequency conversion can be compensated, the stability of the change of the brightness/chromaticity during the frequency conversion process is improved, and the display effect of the image in the display screen is improved.

Referring to fig. 4, a flowchart of another image display method according to an exemplary embodiment of the present application is shown. The method is applied to a terminal provided with an AMOLED display screen, and comprises the following steps:

step 401, obtaining the lowest Gate frequency Gate-FR supported by the terminal.

Optionally, the terminal may obtain the size of the Lowest Gate frequency Lowest Gate-FR supported by the terminal, and obtain the number of EM pulses that may be included in a frame of the EM signal corresponding to Lowest Gate-FR at most according to the Lowest Gate-FR. For example, when the Lowest Gate-FR supported by the terminal is 48Hz, a frame of the EM signal corresponding to the Lowest Gate-FR may contain at most 10 EM pulses.

At step 402, the individual EM pulses contained in a frame of the EM signal are grouped.

Optionally, the terminal groups each EM pulse included in one frame to obtain each grouping result. Wherein the terminal groups the EM pulses in time order.

In one possible implementation, the terminal may equally group the EM pulses contained in an EM signal within a frame according to the number of EM pulses contained in an EM signal within a frame. That is, the terminal may equally divide the EM signal into 10 groups by including each EM pulse in one frame, for example, also taking the above-mentioned Lowest Gate-FR as 48Hz as an example, a frame of the EM signal corresponding to the Lowest Gate-FR may include 10 EM pulses at most, and the terminal may group each EM pulse into one group, so as to divide the 10 EM pulses included in one frame into 10 groups. Or, when a frame of an EM signal corresponding to a certain Lowest Gate-FR may include 480 EM pulses at most, the terminal may also group every two adjacent EM pulses in time order, so as to divide the 480 EM pulses included in a frame into 240 groups. The number of packets in the packet result is not limited in the embodiment of the present application.

In one possible implementation, the terminal may also group the EM pulses contained in the EM signal within a frame unequally according to the number of the EM pulses contained in the EM signal within a frame. That is, the terminal may divide the EM signal unequally to include each EM pulse within a frame. For example, also taking the above-mentioned Lowest Gate-FR as 48Hz as an example, a frame of the EM signal corresponding to the Lowest Gate-FR may include 10 EM pulses at most, and the terminal may divide the 10 EM pulses into 4 groups starting with the first EM pulse (for example, the first and second EM pulses are the first group, the third EM pulse is the first group, the fourth, fifth, sixth, and seventh EM pulses are the third group, and the eighth, ninth, and tenth EM pulses are the fourth group). The unequal divisions mentioned in the embodiments of the present application mean that the numbers of the EM pulses included in any two groups of the EM pulses in each group are different, and it can be regarded as grouping the EM pulses included in the EM signal in one frame according to an unequal division manner.

In one possible implementation, the grouping of the EM pulses contained in the EM signal within a frame in the terminal may be performed as follows. And the terminal sets a second parameter group for the EM signal and groups each EM pulse contained in one frame of the EM signal according to the second parameter group. Each parameter in the second set of parameters is indicative of a grouping node of each EM pulse contained by the EM signal within a frame.

For example, X Dimming Start parameters may be set in the terminal, and the X Dimming Start parameters constitute the second parameter group. Wherein, X Dimming Start parameters are independent, and each Dimming Start parameter can be represented by a preset number of bits. For example, a frame of the EM signal corresponding to Lowest Gate-FR may contain 480 EM pulses at most, and if the terminal determines to divide the EM pulses contained in the frame into 10 groups, 9 Dimming Start parameters may be set, and each Dimming Start parameter may indicate a cutoff position of each group. For example, the terminal indicates the first Dimming Start parameter through 9bit data in the register, and if the data is 000001111, the terminal indicates that the first EM pulse to the 16 th EM pulse are divided into an EM pulse group in the 480 EM pulses. On the basis of the first Dimming Start parameter, if the terminal indicates the second Dimming Start parameter through 9bit data in the register, if the data is 000011111, the terminal indicates that the 480 EM pulses from the 17 th EM pulse to the 32 th EM pulse are divided into two EM pulse groups. By analogy, the terminal may represent a packet node that is set with X Dimming Start parameters, indicating the individual EM pulses that the EM signal contains within a frame at the time of the packet.

And 403, setting a corresponding first parameter for each group of EM pulses, where the first parameter is used to indicate a variation of a duty ratio corresponding to the group of EM pulses.

Wherein the magnitude of the first parameter decreases with time.

That is, corresponding to each group of EM pulses obtained after the grouping, the terminal may set a first parameter for each group of EM pulses, where the first parameter may indicate a variation of a duty ratio corresponding to each EM pulse in the group.

Optionally, for each EM pulse, the corresponding Duty ratio has a conventional value EM _ Basic _ Duty according to a conventional setting, and in the related art, the EM _ Basic _ Duty of each EM pulse is the same, so in the embodiment of the present application, a first parameter is set for each group of EM pulses, thereby indirectly indicating how large the Duty ratio of each EM pulse in the group of EM pulses should be. Optionally, for example, the grouping result includes 10 groups, and the terminal may be correspondingly provided with 10 first parameters, where each first parameter is also independent of each other and has a preset value range (for example, the value range may be between 0.9 and 1), and each first parameter is decreased according to a time sequence (grouping sequence).

Please refer to table 2, which shows a parameter schematic table of a first parameter related to an exemplary embodiment of the present application.

Duty1

Duty2

Duty3

Duty4

Duty5

Duty6

Duty7

Duty8

Duty9

Duty10

TABLE 2

Optionally, each of the first parameters may be represented by 8-bit data in a register, which is not described herein again.

In a possible implementation manner, the number of the respective parameters in the first parameter group may also be the same as the number of the second parameters. That is, the first set of EM pulses may have a conventional value of EM _ Basic _ Duty, and the remaining sets of EM pulses may have corresponding second parameters corresponding to sequentially decreasing Duty cycles from the first set of EM pulses to the last set of EM pulses.

Step 404, generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group.

That is, the terminal may change the duty ratio corresponding to each EM pulse in the EM signal according to the set first and second parameter sets.

Taking the example that Lowest Gate-FR supported in the terminal is 48Hz, and the EM pulses in each frame in the EM signal corresponding to Lowest Gate-FR are divided into 10 groups, the terminal may set 9 Dimming Start parameters in the second parameter group set corresponding to Lowest Gate-FR, where the 9 parameters divide 10 EM pulses in one frame into 10 groups, and the first parameter group set corresponding to Lowest Gate-FR may also include 9 parameters (Duty1 to Duty9), where the 9 parameters respectively indicate the amount of change in the space ratio corresponding to the EM pulses in each group from the second group to the tenth group. Taking the Duty ratio as EM _ Basic _ Duty as an example, the Duty ratios adopted by the EM pulses of each group in the target EM signal are: EM _ Basic _ Duty, Duty1, EM _ Basic _ Duty2 … … EM _ Basic _ Duty 9.

Step 405, displaying the received image according to the target EM signal.

That is, after the terminal receives the image data, the terminal may display in conjunction with the duty cycle size of each EM pulse in the target EM signal when displaying the image.

In the embodiment of the present application, after setting the first parameter group and the second parameter group to the EM signal, when the Gate-FR is changed, the first parameter group and the second parameter group set to the EM signal by the terminal remain unchanged, and the target EM signal generated as described above is displayed as an image of the changed EM signal corresponding to the Gate-FR.

For example, for the above-mentioned Lowest Gate-FR being 48Hz and EM-FR being 480Hz, the first parameter group set by the terminal is Duty1 to Duty9, and the second parameter group set by the terminal is: 000000000-000001000 (i.e., each EM pulse as a group); if the Gate-FR changes from 48Hz to 60Hz at this time, and there are only 8 EM pulses in one frame, the terminal can follow the first 8 parameters (Duty1 to Duty7) in the set first parameter set and the first 8 parameters (000000000 to 000000110) in the set second parameter set; and calculating the duty ratio of each EM pulse in the EM signal of which the Gate-FR is 60Hz, and obtaining a corresponding target EM signal, thereby displaying the subsequent images.

Please refer to fig. 5, which illustrates a schematic diagram of a variation of an optical parameter during frequency raising according to an exemplary embodiment of the present application. As shown in fig. 5, a first frame 501 and a second frame 502 are included, when the AMOLED needs to change the Gate-FR from 48Hz (hertz) to 60Hz, the corresponding optical parameters in the second frame are kept the same as the optical parameters in the first frame, which causes a delay in switching the optical parameters in the second frame, but since the 60Hz EM pulse and the first 8 48Hz EM pulses keep the same duty ratio, a sudden change in luminance/chromaticity caused by the delay in switching the optical parameters is alleviated, so that the luminance is kept stable when the Gate-FR is switched at the terminal, and the display effect of the image is improved.

The embodiment of the application also provides a DDIC chip, which is applied to the AMOLED display screen and is used for:

setting a first parameter group for the EM signal, wherein each parameter in the first parameter group is used for indicating the variation of the duty ratio corresponding to each EM pulse contained in one frame of the EM signal; wherein the variation of the duty cycle indicated by each parameter in the first parameter group decreases with time;

generating a target EM signal according to the first parameter group and the EM signal, wherein the target EM signal is the EM signal obtained by adjusting the duty ratio corresponding to each EM pulse in the EM signal according to the first parameter group;

and displaying the received image according to the target EM signal.

Optionally, the DDIC chip is configured to:

grouping individual EM pulses contained within a frame of the EM signal;

and setting a corresponding first parameter for each group of EM pulses, wherein the first parameter is used for indicating the variation of the duty ratio corresponding to the group of EM pulses, and the size of the first parameter is decreased gradually along with time.

Optionally, the DDIC chip is configured to:

setting a second parameter group for the EM signal, wherein each parameter in the second parameter group is used for indicating a grouping node of each EM pulse contained in one frame of the EM signal;

the EM pulses contained within a frame of the EM signal are grouped according to the second parameter set.

Optionally, the DDIC chip is configured to:

equally grouping each EM pulse contained in a frame by the EM signal according to the number of each EM pulse contained in the frame; alternatively, the first and second electrodes may be,

the individual EM pulses contained within a frame of the EM signal are unequally grouped according to the number of individual EM pulses contained within a frame of the EM signal.

Optionally, the EM signal is an EM signal corresponding to the lowest Gate frequency Gate-FR, and the DDIC chip is configured to:

and acquiring the lowest grid frequency Gate-FR supported by the terminal.

Optionally, the number of each parameter in the first parameter group is the same as the number of each parameter in the second parameter group.

The detailed process of the DDIC chip in implementing the image display method may refer to the above embodiments of the method, and this embodiment is not described herein again.

In addition, the embodiment of the application also provides a display screen module, which comprises an AMOLED display screen and a DDIC chip, wherein the DDIC chip is used for driving the AMOLED display screen, and is used for realizing the image display method provided by the method embodiments.

Referring to fig. 6, a block diagram of a terminal 600 according to an exemplary embodiment of the present application is shown. The terminal 600 may be a smart phone, a tablet computer, a notebook computer, etc. The terminal 600 in the present application may include one or more of the following components: an application processor 610, a memory 620, and a display module 630.

Processor 610 may include one or more processing cores. The processor 610 connects various parts within the overall terminal 600 using various interfaces and lines, performs various functions of the terminal 600 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 620, and calling data stored in the memory 620. Alternatively, the processor 610 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 610 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Neural-Network Processing Unit (NPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content to be displayed by the touch display screen module 630; the NPU is used for realizing an Artificial Intelligence (AI) function; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 610, but may be implemented by a single chip.

The Memory 620 may include a Random Access Memory (RAM) or a Read-Only Memory (ROM). Optionally, the memory 620 includes a non-transitory computer-readable medium. The memory 620 may be used to store instructions, programs, code sets, or instruction sets. The memory 620 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments of the present application, and the like; the storage data area may store data (such as audio data, a phonebook) created according to the use of the terminal 600, and the like.

The display module 630 is a display module for displaying images, and is generally disposed on the front panel of the terminal 600. The display screen module 630 may be designed as a full-screen, curved screen, irregular screen, double-sided screen, or folding screen. The display module 630 may also be designed to be a combination of a full-screen and a curved-screen, or a combination of a special-shaped screen and a curved-screen, which is not limited in this embodiment.

In the embodiment of the present application, the display module 630 includes a DDIC chip 631 and a display 632 (panel). The display screen 632 is an AMOLED display screen, which may be a Low Temperature Polysilicon (LTPS) AMOLED display screen or a Low Temperature Polysilicon Oxide (LTPO) AMOLED display screen.

The DDIC chip 631 is used to drive the display screen 632 to perform image display, and the DDIC chip 631 is used to implement the image display methods provided by the various embodiments described above. In addition, the DDIC chip 631 is connected to the processor 610 through an MIPI interface, and is configured to receive image data and instructions sent by the processor 610.

In a possible implementation manner, the display screen module 630 further has a touch function, and a user can use any suitable object such as a finger or a touch pen to perform a touch operation on the display screen module 630 through the touch function.

In addition, those skilled in the art will appreciate that the configuration of terminal 600 illustrated in the above-described figures is not intended to be limiting with respect to terminal 600, and that terminals may include more or less components than those illustrated, or some components may be combined, or a different arrangement of components. For example, the terminal 600 further includes a microphone, a speaker, a radio frequency circuit, an input unit, a sensor, an audio circuit, a Wireless Fidelity (WiFi) module, a power supply, a bluetooth module, and other components, which are not described herein again.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An image display method for a terminal provided with an active matrix organic light emitting diode AMOLED display screen, the method comprising:

and displaying the received image according to the target EM signal.

2. The method of claim 1, wherein said setting a first set of parameters on the EM signal comprises:

grouping individual EM pulses contained within a frame of said EM signal;

3. The method of claim 2, wherein said grouping individual EM pulses contained within a frame of said EM signal comprises:

grouping individual EM pulses contained within a frame of the EM signal according to the second set of parameters.

4. The method of claim 2, wherein said grouping individual EM pulses contained within a frame of said EM signal comprises:

the individual EM pulses contained within a frame of said EM signal are grouped unequally according to the number of individual EM pulses contained within a frame of said EM signal.

5. The method according to any one of claims 1 to 4, wherein the EM signal is an EM signal corresponding to a minimum Gate frequency Gate-FR, the method further comprising:

and acquiring the lowest grid frequency Gate-FR supported by the terminal.

6. The method according to any of claims 1 to 4, wherein the number of individual parameters in the first parameter set is the same as the number of individual parameters in the second parameter set.

7. A Display Driver Integrated Circuit (DDIC) chip is applied to an Active Matrix Organic Light Emitting Diode (AMOLED) display screen, and is used for:

and displaying the received image according to the target EM signal.

8. A DDIC chip as in claim 7, wherein the DDIC chip is to:

grouping individual EM pulses contained within a frame of said EM signal;

9. A DDIC chip as in claim 8, wherein the DDIC chip is to:

10. A DDIC chip as in claim 8, wherein the DDIC chip is to:

11. A DDIC chip as in any of claims 7 to 10, wherein the EM signal is an EM signal corresponding to a lowest Gate frequency Gate-FR, the DDIC chip being configured to:

and acquiring the lowest grid frequency Gate-FR supported by the terminal.

12. A DDIC chip as in any of claims 7-10, wherein the number of parameters in the first parameter set is the same as the number of parameters in the second parameter set.

13. A display screen module, wherein the display screen module comprises an active matrix organic light emitting diode AMOLED display screen and a display driver integrated circuit DDIC chip, the DDIC chip is used for driving the AMOLED display screen, and the DDIC chip comprises the DDIC chip as claimed in any one of claims 7 to 12.

14. A terminal, characterized in that it comprises at least one display screen module according to claim 13.